|No.|Song|Singers|Length (m:ss)|
|---|---|---|---|
|1|Kalluri Padam|Shankar Mahadevan|01:32|
|2|Iru Kangal|Balram, Gopika Poornima|04:49|
|3|Sithanna Vasal|S. P. Balasubramaniam, Sujatha|04:53|
|4|Thozha Thozha|Karthik|03:57|
|5|Vidinjakka Kannalam|Chitra Sivaraman|04:20|
|6|Mullai Poo|SPB Charan, Venkat Prabhu, Yugendran|04:33|
|7|Yarum Ariya|Pavithra|05:16|
|8|Salsa - Theme Music|Instrumental|01:33|

Question: what is the number of songs sung by two singers?
Answer: 3